Verifying the authenticity of an Android APK file is essential to ensure that the application is legitimate and not malicious. It is important to get the APK from a reliable source and to look at the security signature to make sure it is signed by the same authority with the same key. To do this, one must generate a certificate and use the apksigner tool to sign the APK. Additionally, one can analyze the application by decompiling it and looking at the certificate, hash algorithm, and if it has been modified or manipulated.
In this article, we will discuss how to verify an Android APK file and how to sign it with a self-signed certificate on Windows.
